TWI437266B - Light harvesting lens module - Google Patents

Description

Collecting lens module

The present invention relates to a concentrating module, and more particularly to a concentrating lens module that converges light from the environment into a point source for efficient use.

In recent years, with the development of science and technology, the demand for energy has gradually increased, making energy supply in short supply. Environmental protection issues have gradually been valued by human beings, making green energy a trend of emerging industries. Therefore, how to make renewable energy efficient. Utilization is an important topic. In particular, it is aimed at how to apply green energy to the construction industry to provide healthier natural light lighting, while effectively saving energy, to reduce building energy consumption and achieve sustainable development. Among them, building energy consumption includes, for example, air conditioning, lighting, and household electricity, especially the electricity consumed by lighting accounts for one-fifth of its total power generation. Therefore, it can be known that lighting energy conservation will be an important development project in the construction industry to save energy. one.

At present, there are two ways to provide energy-saving lighting in the construction industry: one is to use solar energy conversion technology to provide electricity by photoelectric conversion, but its conversion efficiency and cost considerations are a big problem; the other is to borrow The optical design directly introduces sunlight into the room as a technology for green lighting, which can greatly improve the utilization efficiency of sunlight. By collecting and utilizing the green illumination of sunlight, it is possible to effectively transmit daytime sunlight to indoor dark rooms, which can effectively reduce power consumption and can be applied to basements or corridors of buildings such as office buildings and apartments. Natural lighting or as auxiliary lighting. In the green lighting technology, after collecting the light, the light collector is guided by the light guide to conduct into the space in the building that could not be directly irradiated, so as to be indoor lighting. In addition, it can also be applied to solar energy conversion devices to increase the collection efficiency of sunlight to improve the production efficiency of solar energy conversion devices.

However, although green lighting technology can effectively introduce sunlight into the room, in the process of collecting light, transmitting light, and illuminating, the light energy must be lost. Therefore, how to increase the light concentration rate of the concentrator and improve The light compression ratio is an problem that the technical field is eager to solve.

It is an object of the present invention to provide a concentrating lens module for increasing the light concentration ratio and increasing the light compression ratio to effectively utilize light from a surrounding environment.

Other objects and advantages of the present invention will become apparent from the technical features disclosed herein.

In order to achieve one or a part or all of the above or other objects, a collecting lens module according to a first embodiment of the present invention includes at least one annular lens, and the annular lens has a ring center and includes an incoming light. A curved surface, a light surface, and a reflective surface. The light path is back to the center of the ring. The light-emitting surface is opposite to the curved surface of the light and faces the center of the ring. The light-incident surface is adapted to receive light in the environment and refract the light to converge. The light-emitting surface is suitable for the light inside the ring lens to be emitted and turned toward The direction of the heart. The reflecting surface is located between the light-incident surface and the light-emitting surface, and is connected to one end of the light-incident surface and one end of the light-emitting surface, and is suitable for reflecting light in the environment and moving toward the center of the ring.

In one embodiment, the annular lens further includes a plane disposed on an opposite side of the reflective surface and coupled to the other end of the light incident surface and the other end of the light exiting curved surface. Wherein, the light-emitting surface is a concave surface.

In one embodiment, the annular lens further includes a flat surface disposed on an opposite side of the reflective surface and coupled to the other end of the light incident surface and the other end of the light exiting curved surface. The light exiting surface is a convex surface, and the plane has a reflective area. The light incident surface has a light incident focus, and the light incident focus is disposed in the reflective region, and the light refracted by the light incident surface converges at the light incident focus and is reflected by the reflective region. The light-emitting surface includes a light-emitting focus, and the light-emitting focus is at the same position as the light-in focus, so that the light concentrated at the light-emitting focus is reflected by the reflective area to the light-emitting surface.

In one embodiment, the concentrating lens module of the present invention further includes a light guiding unit disposed on the center of the ring for guiding the light refracted by the light exiting surface. Wherein, the shape of the light guiding unit comprises a tapered structure.

In one embodiment, the number of annular lenses is plural, the radius of each annular lens is not the same, and the annular lenses are centered on the center of the ring, and are arranged outwardly according to their radii from small to large to form a circle. Disk structure.

In one embodiment, the annular lens includes a first annular lens and a second annular lens. The first annular lens has a first light incident surface and a first light emitting surface, and the first light emitting surface faces the ring core. The first light-incident surface is located on the opposite side of the first light-emitting surface, and the second annular lens has a second light-incident surface and a second light-emitting surface, and the second light-emitting surface faces the first light-incident surface, and the second light-incident surface The light surface is located on the opposite side of the second light exiting surface. The first light incident surface and the second light incident curved surface are all convex surfaces, and the first light emitting surface and the second light emitting curved surface are concave surfaces.

In another embodiment, the first light incident surface, the second light incident surface, the first light exiting surface, and the second light emitting curved surface are all convex surfaces. The first light incident surface and the first light exit curved surface have a common first focus, and the second light incident surface and the second light exit curved surface have a common second focus, wherein the light concentrated at the second focus is reflected To the second light-emitting surface, the second light-emitting surface refracts the light to the first light-incident surface, and the first light-incident surface refracts the light to converge the light at the first focus, and the light concentrated at the first focus is reflected to The first light exiting surface is refracted by the first light exiting surface and turns toward the center of the ring.

Compared with the existing collecting lens, the embodiment of the invention has the advantages of shorter collecting distance and higher light compression ratio, thereby effectively increasing the light concentration ratio and improving the light utilization efficiency.

The above and other technical contents, features and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments. The directional terms mentioned in the following embodiments, such as upper, lower, left, right, front or rear, etc., are only used to refer to the directions of the accompanying drawings. Therefore, the directional terms are used for illustration only and are not intended to limit the invention.

Please refer to the first figure, which is a perspective view of a collecting lens module according to a first embodiment of the present invention. The collecting lens module 10 includes a plurality of annular lenses 100, 200, 300 for concentrating light in the environment to form a point source. The annular lenses 100, 200, and 300 have different radii, and each of the annular lenses 100, 200, and 300 is centered on the same center C, and is sequentially ordered from small to large according to the radius of the equal radius. Arranged to form a disk-shaped collecting lens module 10.

Referring to the second figure, it is a schematic cross-sectional view taken along the O-O' extension line in the first figure. In the first embodiment, the cross section of the disc-shaped collecting lens module 10 includes a first annular lens section 100a, a second annular lens section 200a, and a third annular lens section 300a.

The surface of the first annular lens 100 includes a first light incident surface 110a, a first light exit curved surface 120a, a first flat surface 130a, and a first reflective surface 140a. The first light incident curved surface 110a is located outside the first annular lens 100 and faces away from the center C. The first light exiting curved surface 120a is opposite to the first light incident curved surface 110a and is located inside the first annular lens 100 and faces the ring core C. In this embodiment, the first light-emitting curved surface 120a is a concave surface. The first plane 130a is located between the first light incident curved surface 110a and the first light emitting curved surface 120a, and is connected to one end of the first light incident curved surface 110a and one end of the first light emitting curved surface 120a. The first reflecting surface 140a is disposed on the opposite side of the first plane 130a, and is connected to the other end of the first light incident curved surface 110a and the other end of the first light emitting curved surface 120a. The first light incident surface 110a and the first light exit curved surface 120a may each be an aspherical curved surface.

The radius of the second annular lens 200 is greater than the radius of the first annular lens 100 and surrounds the periphery of the first annular lens 100. The surface of the second annular lens 200 includes a second light incident surface 210a, a second light exit curved surface 220a, a second flat surface 230a, and a second reflective surface 240a. The second light incident curved surface 210a is located outside the second annular lens 200 and faces away from the center C. The second light-emitting surface 220a is opposite to the second light-incident curved surface 210a and is located inside the second annular lens 200 and faces the ring core C. In this embodiment, the second light exiting surface 220a is a concave surface. The second plane 230a is located between the second light incident surface 210a and the second light exit curved surface 220a, and is connected to one end of the second light incident curved surface 210a and one end of the second light emitting curved surface 220a. The second reflecting surface 240a is disposed on the opposite side of the second plane 230a, and is connected to the other end of the second light incident curved surface 210a and the other end of the second light emitting curved surface 220a. The second light incident surface 210a and the second light exit curved surface 220a may each be an aspherical curved surface.

The radius of the third annular lens 300 is larger than the radius of the second annular lens 200 and surrounds the periphery of the second annular lens 200. The surface of the third annular lens 300 includes a third light incident surface 310a, a third light exit curved surface 320a, a third flat surface 330a, and a third reflective surface 340a. The third light incident curved surface 310a is located outside the third annular lens 300 and faces away from the center C. The third light-emitting surface 320a faces away from the third light-incident curved surface 310a and is located inside the third annular lens 300 and faces the ring core C. In this embodiment, the third light-emitting curved surface 320a is a concave surface. The third plane 330a is located between the third light incident surface 310a and the third light exit curved surface 320a, and is connected to one end of the third light incident curved surface 310a and one end of the third light emitting curved surface 320a. The third reflecting surface 340a is disposed on the opposite side of the third plane 330a, and is connected to the other end of the third light incident curved surface 310a and the other end of the third light emitting curved surface 320a. The third light incident surface 310a and the third light exit curved surface 320a may each be an aspherical curved surface.

In the process of concentrating the light L in the environment, the third reflecting surface 340a of the third annular lens 300 reflects the light L from above to the second light incident surface 210a. The light L incident on the second light incident surface 210a is refracted through the second light incident surface 210a, and proceeds to the second light exit curved surface 220a. After the second annular lens 200 is refracted via the second light exit curved surface 220a, the light is incident in parallel to the second annular lens 200. The first light incident surface 110a. At this time, the second reflecting surface 240a also reflects the light L from above onto the first light incident surface 110a. The light L incident on the first light incident curved surface 110a is refracted through the first light incident curved surface 110a, and proceeds to the first light exit curved surface 120a. After being refracted through the first light exit curved surface 120a, the light ray L is incident in parallel through a circular center. On the axis of C.

In addition, if a fourth annular lens (not shown) is disposed on the periphery of the third annular lens 300, the fourth annular lens guides the light L incident on the fourth reflecting surface (not shown) into the third The light-incident curved surface 310a is refracted to the third light-emitting curved surface 320a, and the third light-emitting curved surface 320a further refracts the light ray L out of the third annular lens 300, so that the light ray L is incident in parallel to the second light-incident curved surface 210a, and the collecting lens mode is made. Group 10 can collect more light L.

In an embodiment, the position of the toroid C can be configured with a light guiding unit 20, which can be, for example, an optical fiber having a tapered structure. The light L refracted by the first light-emitting curved surface 120a is incident on the light guiding unit 20 in parallel and guided by the light guiding unit 20, and is used as an indoor lighting, a solar energy source or the like.

By the arrangement design of the first annular lens 100, the second annular lens 200 and the third annular lens 300 and the disc-shaped structure, the light in the environment can be sequentially passed through the second ring of the outermost third annular lens 300. The gradual convergence of the lens 200 to the innermost first annular lens 100 and convergence to the center C, and the concentrating lens module 10 can converge the light from the environment into a point source, thereby improving the The compression ratio of light and increase the efficiency of light utilization.

As shown in the third figure, it is a schematic cross-sectional view of a collecting lens module according to a second embodiment of the present invention. The collecting lens module of this embodiment has only one annular lens 100, the annular lens 100 is surrounded by a toroid C, and the broken line in the second figure is the axis passing through the toroid C. The surface of the annular lens 100 includes a light incident surface 110a, a light exit curved surface 120a, a flat surface 130a, and a reflective surface 140a. The light incident surface 110a and the light exit curved surface 120a are all aspherical curved surfaces. The light incident surface 110a is a convex surface which is located outside the annular lens 100 and faces away from the center C. The light-emitting curved surface 120a is a concave surface which is located inside the annular lens 100 and faces away from the light curved surface 110a and faces the center C. The plane 130a is located between the light incident curved surface 110a and the light exit curved surface 120a, and is connected to one end of the light incident curved surface 110a and one end of the light exit curved surface 120a. The reflecting surface 140a is disposed on the opposite side of the plane 130a, and is connected to the other end of the light incident curved surface 110a and the other end of the light emitting curved surface 120a.

When the light L in the environment is collected by the annular lens 100, the path of the light L is as shown in the fourth figure. A part of the light L is refracted by the light incident surface 110a after being incident on the light incident surface 110a, and is turned to the light exit curved surface 120a. Then, the light-emitting curved surface 120a refracts the light L again, is emitted by the annular lens 100, and is incident on the axis of the toroid C in parallel. The other portion of the light L is reflected by the reflecting surface 140a and incident on the axis of the toroid C in parallel.

Please refer to FIG. 5 , which is a cross-sectional view of a collecting lens module according to a third embodiment of the present invention. The collecting lens module of the present embodiment also includes only a ring lens 100b having a ring center C, the broken line in the figure is the axis passing through the center C, and the surface of the ring lens 100b includes a light incident surface 110b. A light-emitting surface 120b, a plane 130b, and a reflecting surface 140b. In this embodiment, both the light incident surface 110b and the light exit curved surface 120b are convex surfaces.

The light incident surface 110b is located outside the annular lens 100b and faces away from the toroid C, wherein the light incident surface 110b is an aspherical curved surface and has an incident light focus F1. The distance between the incident curved surface 110b and its incident light focus F1 is referred to as the incident focal length f1. The light-emitting curved surface 120b is located inside the annular lens 100b, and faces away from the light curved surface 110b and faces the ring core C. The light exiting surface 120b is also an aspherical curved surface having a light exiting focus F2. The distance between the light exiting curved surface 120b and its light exiting focal point F2 is referred to as the outgoing light focal length f2. In the present embodiment, the light-emitting focus F2 and the incident light focus F1 are located at the same position, which is also called confocal.

The plane 130b is located between the light incident curved surface 110b and the light exit curved surface 120b, and is connected to one end of the light incident curved surface 110b and one end of the light exit curved surface 120b. In particular, the plane 130b has a reflective area (not numbered), and the light incident focus F1 and the light exit focus F2 are disposed at the same position in the reflective area of the plane 130b. The reflecting surface 140b is disposed on the opposite side of the plane 130b, and is connected to the other end of the light incident curved surface 110b and the other end of the light emitting curved surface 120b.

When the light L in the environment is collected by the annular lens 100, the path of the light L is as shown in the sixth figure. A part of the light L is incident on the light incident surface 110b after being incident on the light incident surface 110b, and is refracted by the light incident surface 110b to the light incident focus F1. Since the light incident focus F1 is disposed on the reflective area of the plane 130b and is at the same position as the light exiting focus F2, the light L from the light incident surface 110b can be reflected by the reflective area of the flat surface 130b onto the light exit curved surface 120b. The light L reflected by the reflection area of the plane 130b is refracted by the light exit curved surface 120b and incident on the axis of the ring core C in parallel. The other portion of the light ray L is directly reflected by the reflecting surface 140b and incident on the axis of the toroid C in parallel.

In the embodiments shown in the above third to sixth embodiments, the light guiding unit may be disposed on the axis of the toroid C such that the light L refracted by the light emitting curved surfaces 120a, 120b and reflected by the reflecting surfaces 140a, 140b Light L can enter the light guiding unit.

By the annular lenses 100, 100b composed of the aspherical curved surfaces 110a, 110b and the aspherical curved surfaces 120a, 120b, and the shape design thereof, the annular lenses 100, 100b can concentrate the light in the environment into a point source, and Light L is guided as an application for indoor lighting, solar energy, and the like.

As shown in the seventh embodiment, the collecting lens module 10' of the fourth embodiment is a collecting lens of a disk-like structure which is arranged by a plurality of annular lenses 100b as shown in the fifth to sixth figures. Module 10'.

The surface of the first annular lens 100b includes a first light incident surface 110b, a first light exit curved surface 120b, a first flat surface 130b, and a first reflective surface 140b. The first light incident surface 110b is a convex surface located outside the first annular lens 100b and facing away from the center C, and has a first light incident focus F1. The first light-emitting surface 120b is a convex surface, and is opposite to the first light-incident curved surface 110b, and is located inside the first annular lens 100b, faces the center C, and has a first light-emitting focus F2. The first light-emitting focus F2 and the first light-in focus F1 are confocal, and are disposed in a reflective area (not labeled) on the first plane 130b. The first plane 130b is connected to one end of the first light incident curved surface 110b and one end of the first light emitting curved surface 120b. The first reflecting surface 140b is disposed on the opposite side of the first plane 130b, and is connected to the other end of the first light incident curved surface 110b and the other end of the first light emitting curved surface 120b. In the present embodiment, the first light incident focus F1 and the first light exit focal point F2 have a distance from the centroid C, which is defined as the radius of the first annular lens 100b.

The radius of the second annular lens 200b is greater than the radius of the first annular lens 100b, and the second annular lens 200b is centered on the toroidal center C of the first annular lens 100b, and surrounds the periphery of the first annular lens 100b. . The second annular lens 200b includes a second light incident surface 210b, a second light exit curved surface 220b, a second flat surface 230b, and a second reflective surface 240b. The second light incident curved surface 210b is located outside the second annular lens 200b and is opposite to the center C and has a second incident light focus F1'. The second light-emitting surface 220b is a convex surface, and is opposite to the second light-incident curved surface 210b, and is located inside the second annular lens 200b, and faces the center C, and has a second light-emitting focus F2. '. The second light-emitting focus F2 ′ and the second light-incident focus F1 ′ are confocal, and the distance between the second incoming light focus F1 ′ and the second light-emitting focus F 2 ′ and the toroid C is the second annular lens 200 b . The radius. The second light incident focus F1 ′ and the second light exit focus F2 ′ are disposed in a reflective area (not labeled) on the second plane 230 b , and the second plane 230 b is connected to one end of the second light incident curved surface 210 b and One end of the second light exiting surface 220b. The second reflecting surface 240b is disposed on the opposite side of the second plane 230b, and is connected to the other end of the second light incident curved surface 210b and the other end of the second light emitting curved surface 220b.

The radius of the third annular lens 300b is greater than the radius of the second annular lens 200b, and the third annular lens 300b is centered on the toroidal center C of the first annular lens 100b and is disposed around the periphery of the second annular lens 200b. The third annular lens 300b includes a third light incident surface 310b, a third light exit curved surface 320b, a third flat surface 330b, and a third reflective surface 340b. The third light incident surface 310b is located outside the third annular lens 300b, and is opposite to the ring core C, and has a third light incident focus F1". The third light exit curved surface 320b is a convex surface, and the back is The third light incident surface 310b is located inside the third annular lens 300b and faces the center C, and has a third light exiting focus F2". The third light-emitting focus F2" and the third light-incident focus F1" are confocal, and are disposed in a reflective area (not labeled) on the third plane 330b, and the third plane 330b is connected to the third One end of the light incident surface 310b and one end of the third light exit curved surface 320b. The third reflecting surface 340b is disposed on the opposite side of the third plane 330b, and is connected to the other end of the third light incident curved surface 310b and the other end of the third light emitting curved surface 320b.

In the present embodiment, the distance between the third light incident focus F1" and the third light exit focus F2" and the centroid C is the radius of the third annular lens 300b, so that the first annular lens 100b and the second annular lens Both the 200b and the third annular lens 300b are centered on the center of the circle C, and are sequentially arranged from the inside to the outside according to the magnitude of the radius thereof to form a disk-shaped collecting lens module 10'.

When the light L in the environment is incident on the third ring lens 300b, the third reflecting surface 340b reflects the light L from above to the second light incident surface 210b. The light L incident on the second light incident surface 210b is refracted via the second light incident surface 210b, proceeds to the second plane 230b, and is reflected by the reflective area on the second plane 230b to proceed to the second light exit curved surface 220b. After being refracted via the second light-emitting curved surface 220b, it is incident on the first light-incident curved surface 110b in parallel. At this time, the second reflecting surface 240b also reflects the light L from above onto the first light incident curved surface 110b. The light ray L incident on the first light incident curved surface 110b is refracted via the first light incident curved surface 110b, proceeds to the first plane 130b, and is reflected by the reflective area on the first plane 130b to proceed to the first light exit curved surface 120b. After being refracted via the first light-emitting curved surface 120b, the light ray L is incident parallel to the axis of the toroid C.

In addition, if a fourth annular lens (not shown) is disposed on the periphery of the third annular lens 300b, the fourth annular lens guides the light L incident on the fourth reflecting surface (not shown) into the third input. The light curved surface 310b is refracted to the third plane 330b such that the reflective area on the third plane 330b reflects the light ray L to the third light exiting curved surface 320b, and the third light emitting curved surface 320b refracts the light ray L to the second light incident surface. 210b, so that the collecting lens module 10' can collect more light L. Similarly, in this embodiment, a light guiding unit 20 may be disposed on the center C to guide the light L collected by the collecting lens module 10'.

By the arrangement design of the first annular lens 100b, the second annular lens 200b and the third annular lens 300b and the disc-shaped structure, the light in the environment can be sequentially passed from the outermost third annular lens 300b to the second The annular lens 200b reaches the innermost first annular lens 100b and gradually converges and converges to the center C, so that the collecting lens module 10' can concentrate the light from the environment into a point source. Increase the compression ratio of light, and increase the efficiency of light utilization.

As shown in the eighth figure, it is a schematic diagram of an embodiment of the present invention applied to a building H. The collecting lens modules 10 and 10' can be directly matched with different application fields for building materials, such as laying on the roof, eaves, outer wall and surrounding space of the building H, and the light guide is configured by the light guiding unit 20 It is introduced indoors and used as an intelligent lighting option with indoor lighting fixtures 30, or used in solar solar tracking systems to enhance the light energy needed to collect solar cells.

The lens curved surface design and the arrangement design of the collecting lens module of the embodiment of the invention can increase the light concentration rate of the light, and the disc-shaped module structure can improve the light collecting efficiency of the light and increase the compression ratio of the light and The utilization rate can be used as an industry for rejuvenating green energy such as indoor lighting and solar energy gathering systems to achieve effective use of energy in the environment to effectively save energy and reduce carbon.

The above is only the preferred embodiment of the present invention, and the scope of the invention is not limited thereto, that is, the simple equivalent changes and modifications made by the scope of the invention and the description of the invention are All remain within the scope of the invention patent. In addition, any of the objects or advantages or features of the present invention are not required to be achieved by any embodiment or application of the invention. In addition, the abstract sections and headings are only used to assist in the search of patent documents and are not intended to limit the scope of the invention.

10, 10’. . . Collecting lens module

20. . . Light guide unit

30. . . Lamp

100, 100b. . . (first) ring lens

200, 200b. . . Second ring lens

300, 300b. . . Third ring lens

100a. . . Section of the first annular lens

200a. . . Section of the second annular lens

300a. . . Section of the third annular lens

110a, 110b. . . (first) light surface

210a, 210b. . . Second light surface

310a, 310b. . . Third light surface

120a, 120b. . . (first) light surface

220a, 220b. . . Second light surface

320a, 320b. . . Third light surface

130a. . . (first) plane

230a. . . Second plane

330a. . . Third plane

140, 140a, 140b. . . (first) reflective surface

240a, 240b. . . Second reflecting surface

340a, 340b. . . Third reflecting surface

C. . . Ring heart

F1. . . (first) light focus

F1’. . . Second light focus

F1"...the third light focus

F1. . . Into the focal length

F2. . . (first) light focus

F2’. . . Second light focus

F2"...the third light focus

F2. . . Light focal length

H. . . building

L. . . Light

The first figure is a perspective view of a collecting lens module according to a first embodiment of the present invention.

The second figure is a schematic cross-sectional view taken along the line extending along the O-O' in the first figure.

The third and fourth figures are respectively a side view and a cross-sectional structural view of the collecting lens module of the second embodiment.

The fifth and sixth figures are respectively a side view and a cross-sectional structural view of the collecting lens module of the third embodiment.

Figure 7 is a cross-sectional view showing the collecting lens module of the fourth embodiment.

The eighth figure is a schematic view of an embodiment of the present invention applied to a building.

10. . . Collecting lens module

100. . . First ring lens

200. . . Second ring lens

300. . . Third ring lens

C. . . Ring heart

Claims (10)

A collecting lens module includes: at least one annular lens having a ring center, and the annular lens includes: a light incident surface that is opposite to the ring core and protrudes toward a source of the first ambient light, The first ambient light system is incident on the light incident surface from a first direction. When the ambient light is refracted by the light incident surface, the ambient light tends to converge inside the annular lens; and a light surface is located on the light incident surface. On the opposite side, facing the toroid, wherein the area of the light-emitting surface is smaller than the area of the light-incident curved surface, and the ambient light that tends to converge inside the annular lens is refracted by the light-emitting surface, and then turns toward the ring a direction of the heart; and a reflecting surface between the light incident surface and the light exiting surface, and connected to one end of the light incident surface and one end of the light emitting surface, and facing a second ambient light The second ambient light system is reflected from the reflective surface and moved toward the center of the ring from a second direction different from the first direction. The concentrating lens module of claim 1, wherein the annular lens comprises a plane disposed on an opposite side of the reflecting surface, the plane is opposite to the other end of the light incident surface and the light emitting surface The other end is connected. The concentrating lens module of claim 2, wherein the light-emitting surface is a concave surface. The concentrating lens module of claim 2, wherein the light-emitting surface is a convex surface, and the plane has a reflective area. The concentrating lens module of claim 4, wherein the light incident surface has a light incident focus, the light incident focus is disposed in the reflective region, and the light refracted by the light incident surface converges At the entrance point of the light, it is reflected by the reflection area. The concentrating lens module of claim 5, wherein the light-emitting surface has a light-emitting focus, and the light-emitting focus is at the same position as the light-in focus, whereby light concentrating at the light-emitting focus is The reflective area is reflected to the light exiting surface. The concentrating lens module of claim 1, further comprising a light guiding unit disposed on the center of the ring to guide the light refracted from the light emitting surface. The concentrating lens module of claim 1, wherein the annular lens is plural, each of the annular lenses has a different radius, and the annular lenses are centered on the center of the ring, and A disk-like structure is formed by arranging outwards according to their equal radii from small to large. The concentrating lens module of claim 8, wherein the annular lens comprises a first annular lens and a second annular lens, the first annular lens has a first light incident surface and a first light-emitting surface facing the ring center, the first light-incident surface is located on the opposite side of the first light-emitting surface, and the second ring-shaped lens has a second light-incident surface and a first The second light-emitting surface faces the first light-incident surface, and the second light-incident surface is located on the opposite side of the second light-emitting surface. The concentrating lens module of claim 9, wherein the first light incident curved surface and the first light emitting curved surface have a common first focal length And the second light-incident surface and the second light-emitting surface have a common second focus, wherein the light concentrated at the second focus is reflected to the second light-emitting surface, and the second light-emitting surface is The light is refracted to the first light incident surface, and the first light incident surface refracts the light to converge the light to the first focus, and the light condensed at the first focus is reflected to the first light surface, and The first light-emitting surface is refracted so as to be turned toward the center of the ring.